private TestParticleSystem particleTest(int appWidth, int appHeight) { TestParticleSystem testParticleSystem = new TestParticleSystem(50, new Texture(R.drawable.spark)); testParticleSystem.addGlStatusController(new BlendController(GL_ONE, GL_ONE)); testParticleSystem.setPos(appWidth / 2, appHeight / 2, -100); RotateAnimation rotateAnimation = new RotateAnimation(10000, 0, 360); rotateAnimation.setRotateVector(1, 1, 1); rotateAnimation.setLoop(true); rotateAnimation.setInterpolator(new LinearInterpolator()); testParticleSystem.startAnimation(rotateAnimation); return testParticleSystem; }